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Module F U1 L2

Rock Cycle

QuestionAnswer
rock cycle Earth's rocks change from one type into another over time due to various Earth processes.
igneous rock formed when lava or magma cools and solidifies.
lava molten rock or magma that has reached the Earth's surface, rapid cooling, small crystals.
magma melted or molten rock material under the Earth's surface, cools slowly, larger crystals.
metamorphic rock formed deep underground where heat and pressure cause existing rocks to be changed
heat and pressure changing variables due to weight of overlying rocks, forming metamorphic rock.
sedimentary rock rocks form when particles of other rocks are deposited in layers and are compacted and cemented together.
compaction occurs when rock particles are pressed together or packed down by gravity and overlying rocks.
cementation occurs when compacted sediments stick together and turn into rock.
Created by: MrBSci
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